Humidifying system



R. H. woRRALL.

HUMIDIFYING SYSTEM June 11,, 1935.

Filed Sept. 8, 195;"

INVENTOR Robert H. Worrczll ATTORNEY V Patented June 11, 1935 2,004,147

- UNITED STATES PATENT OFFICE HUMIDIFYING SYSTEM Robert H. Worrall, Washington, D. 0.

Application September 8, 1933, Serial No. 688,609

, 40laims. (Cl. 261-103) (Granted under the act of March a, 1883, an amended April 30, 1928; 370 G. 75'!) This invention relates to a humidifying system supply pipe l9 through a conventional, thermoand has for an object to provide an improved statically controlled valve 20. A return pipe 2| humidifier especially adapted for use in combiis provided at the other end of tubes [6 for renation with any of several types of conventional turning the cooled heating medium to the source heatingmechanisms. I of heat. An extra pipe 22 connected to T-joint 5 Another object is to provide ahumidifying sys- It leads through a thermostat 23 and past a tem that may be used in combination with heatneedle, valve 24 on a pipe 33 on which is suping systems of various types whether the heating ported a perforated tube .25 which .tube is ensystem be electrical, steam, vapor, hot Water, hot closed in a tubular'wick 26; Another and much air, or otherwise. I larger wick 21. depends from perforatedtube 25, 10

A further object is to provide a hymidifying its depending lower. end being held taut by a system which, when once properly adjusted, will spring rod 28 supportedat .23. Spring rod,28 operate automatically, without further attention, also serves to support a drip pan 30 by means of to supply the necessary amount of humidity. a sling 3| secured on spring rod 28 and a pin 32 A still further object is to provide a humidipassed through the sides of the trough 30 and 15 fying system which, when the heating system is over one end of the spring rod 28. one dependent on steam, vapor or hot water may In Fig. 3. a pipe 40 supplies water from an inmake use of the heating medium to supply the dependent source of supply past the thermostat moisture for the humidifying system and which valve 23 to: pipe 33 so that it is not necessary to may be provided with a separate source of moisrely on the heating unit 4| to supply the mois- 20 ture when desired, irrespective of the type of ture. In this case the heating unit 4| may be heating medium with which it is to be used. heated by heating medium other than steam, hot

With the above and other objects in View, this water or vapor. Thus electrical heating coils invention consists in the construction, combinamay be contained within the pipes 42 to heat the tion and arrangement of parts as will be defins 43. Alternatively, the pipes 42 may have 25 scribed more fully hereinafter. any other heating medium passed therethrough In the drawing: such as hot combustion gases or the like. Fig. 1 shows an elevational, partly broken away In operation, the heating medium enters the View Of one fo m of hea Cabinet to wh c this I heating unit from the source of supply and serves system has been applied; to heat the fins placed thereon. These fins in 30 Fig. 2 is a section on line 2-2 of Fig. 1; turn heat the air entering the heating cabinet Fig. 3 is a partly broken away elevational view In from the'bottom l4, thermostat valve 20 con' of a modified form wherein the humidifying systrolling the supply of the heating medium in the tem uses an independent source of moisture. conventional manner. When the air rising from There is shown at In a heating cabinet inthe heating unit is heated to the desired tempera- 35 eluding a heating unit at H. The front of this ture, say, 150, the thermostat valve 23 opens cabinet in is closed with a slidable door l2 havto allow the moisture to enter the pipe 33, the ing a series of louvres l3 through which the heatneedle valve 24 being set to control the amount ed air may leave the cabinet. The cold air enof moisture that will be permitted to reach the 40 ters cabinet ID at the bottom 14 which is spaced perforated tube 25. The moisture then escapes 40 away from the floor or other supporting surface, through the perforated tube 25 to wick 2B and passes about heating unit ll, about the humidi-- drains down over wick 21. The heated air rising tying system l5 constituting this invention, and from the heating unit passes over the sides of out through the louvres l3, the door l2 being wick 21 with the least amount of resistance, ab-

46 slidably removable when necessary to gain access sorbing the moisture therein and carrying it out to either the heating unit H or the humidifying through the louvres 13. The trough 30 is put system [5. The heating unit I l is illustrated as in position when the system is initially turned on an example of any type of suitable heating unit so as to catch any excess moisture from wick 21 that may be used. As here shown, heating unit until the needle valve 24 has been properly ad- 50 ll consists of one or more copper tubes l6 to justed so as to keep the amount of moisture pass- 50 which are attached a plurality of aluminum or ing over wick 21 in balance with the amount that copper fins IT. The copper tubes l6 may be can be taken up by the heated air rising from the heated by any suitable heating medium such as heating unit. When this proper balance has been hot water, vapor or steam entering therein from reached the door I2 is opened permitting access a T-joint l8 connecting to a heating medium to the trough 30 which is removed by merely pu1l- 55 tion, and that various changes may be made there-- in within the scope of the appended claims without sacrificing any of the advantages of this invention.

The herein described invention may be manufactured and used by or for the Government of the United States for governmental purposes without the payment of any royalties thereon. V

I claim:

1. In combination with a heating unit, a humidifying device, said device comprising a source of moisture; means conducting moisture from said source above the heating unit, and means forming said moisture into a film and exposing said film to the air over said heating medium and below said moisture source, said conducting means comprising a perforated tube, a sleeve wick snugly encircling said perforated tube, said film forming means comprising a second wick tautly contacting with and depending from said sleeve wick,

2. In combination with a heating unit, a humidifying device, said device comprising a source of moisture, means conducting moisture from said source above the heating unit, means forming said moisture into a film and exposing said film to the air over said heating medium and below said moisture source, said conducting means comprising a perforated tube and a wick snugly fitted on said perforated tube, said film forming means comprising a second wick depending from said first wick, and a spring rod keeping said second wick taut and means supporting said spring rod.

3. In combination with a heating unit, a humidifying device, said device comprising a source of moisture, means conducting moisture from said source above the heating unit, means forming said moisture into a film and exposing said film to the air over said heating medium and below said moisture source, said conducting means comprising a perforated tube and a wick snugly fitted on said perforated tube, said film forming means comprising a second wick depending from said first wick, a spring rod keeping said second midifying device, said device comprising a source of moisture, means conducting moisture from said source above the heating unit, means forming said moisture into a film and exposing said film to the air over said heating medium and below. said moisture source, said conducting means comprising a perforated tube and a wick snugly fitted on said perforated tube, said film forming means comprising a second wick depending from said first wick, a spring rod keeping said secondwick taut, means supporting said spring rod, a trough, and means for detachably supporting said trough below said wick, said trough supporting means comprising a sling on said spring rod adapted to support one end of said trough and a pin extending through the other end of said trough and of said spring rod.

ROBERT H. WORRAIL. 

